I have noticed that chain kills do not count as kills on the weapon used. same with other subclasses

You need to inflict jolt with one hit, then kill with a second hit. If you kill with the hit that jolts it won't count.

the main issue is it's pretty hard to jolt anything below a yellow bar enemy. red bar enemies die too quickly before jolt is applied. and if you're using voltshot/chain reaction, you're probably killing everything too fast for JOLT to activate. ------------------------ the easiest way is : equip arc fragment "spark of shock" (grenades jolt targets). throw grenade. clean up anything that didn't die initially by whatever means necessary. or use voltshot on a less powerful weapon. this works better on tougher enemies. you're trying to "jolt" them.... not kill them outright. once they're jolted, then kill them. or use Delicate Tomb fusion rifle. equip fragment "spark of discharge". kill something with arc damage. collect Ionic Trace. the ionic trace charges the next Delicate Tomb shot with a jolting shot. once again, you don't really want this shot to KILL them. you want it to apply JOLT. so aim for a tougher enemy. then take them out quickly once they're jolted. or equip "spark of instinct" and bum rush the enemies. you have to be at critical health, but the burst will JOLT enemies closeby. then you have to survive enough to finish them off. or this is like literally a last ditch effort... use Darci sniper rifle. when personal assistant is active.....next shot jolts targets. they have to be able to survive at least one shot, so tougher enemies again.

It’s glitched. It’s like playing the lottery getting it to work. I have had luck with Cloudstrike giving progress. Others said it didn’t work for them though.